Mag is a 5 round.
I don't know the dimensions of the Hawkins so I cannot say.
I would have to say though that I doubt it due to the way Manners attaches their MCS.
Has never had an action bolted in it.
$1,400 delivered
Remington 700 SA footprint
1- 5 round Accurate mag included
Barrel channel opened for either an unturned blank or carbon fiber barrel.
PM your questions